Experimental Evaluation of the Best Approach for Diesel Spray Images Segmentation

被引：30

作者：

Macian, V. ^{[1
]}

Payri, R. ^{[1
]}

Garcia, A. ^{[1
]}

Bardi, M. ^{[1
]}

机构：

[1] Univ Politecn Valencia, CMT Motores Term, E-46071 Valencia, Spain

来源：

EXPERIMENTAL TECHNIQUES | 2012年 / 36卷 / 06期

关键词：

Diesel; Spray; Visualization; Likelihood Ratio Test; Otsu Method; INTERNAL NOZZLE-FLOW; BEHAVIOR;

D O I：

10.1111/j.1747-1567.2011.00730.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this article, two of the most used methods for diesel spray macroscopic characterization are presented; the first one is the likelihood ratio test method (LRT) and the second one is the Otsu's thresholding method (OTM). Both methods are applied to different diesel sprays visualized in a high-pressure nitrogen chamber obtaining better results with the LRT in terms of both contour determination and coherence of the results. Finally, the influence of the algorithm used for the segmentation on the macroscopic characterization measurements is observed.

引用

页码：26 / 34

页数：9

共 12 条

[1]

Cox D.R., 1974, THEORETICAL STAT

[2]

Desantes JM, 2005, ATOMIZATION SPRAY, V15, P517, DOI 10.1615/AtomizSpr.v15.i5.30

[3] Experimental characterization of internal nozzle flow and diesel spray behavior. Part I: Nonevaporative conditions [J].

Desantes, JM ;

Payri, R ;

Pastor, JM ;

Gimeno, J .

ATOMIZATION AND SPRAYS, 2005, 15 (05) :489-516

[4]

Margot X., 2008, SAE PAPER

[5] THRESHOLD SELECTION METHOD FROM GRAY-LEVEL HISTOGRAMS [J].

OTSU, N .

IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS, 1979, 9 (01) :62-66

[6]

Pastor J.V., 2004, APPL OPTICS, V43, P2876

[7] Segmentation of diesel spray images with log-likelihood ratio test algorithm for non-Gaussian distributions [J].

Pastor, Jose V. ;

Arregle, Jean ;

Garcia, Jose M. ;

Zapata, L. Daniel .

APPLIED OPTICS, 2007, 46 (06) :888-899

[8]

Payri F., 2001, APPL OPTICS, V40, P2102

[9] Effects of nozzle geometry on direct injection diesel engine combustion process [J].

Payri, R. ;

Salvador, F. J. ;

Gimeno, J. ;

de la Morena, J. .

APPLIED THERMAL ENGINEERING, 2009, 29 (10) :2051-2060

[10]

Payri R., 2010, J MECH SCI TECHNOL, V19, P2040

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